Fuel-consumption system



Feb. 28, 1928. 1,660 954 H. R, coRwlN FUEL CONSUMPTION SYSTEM Filed June 10. 1927 2 Sheets-Sheet 1 FR@ l G 0 l H. R. CORWIN FUEL CONSUMPTION sYsTx-:u

Filed June 1o. 1927 2 sheets-Sheet 2 Patented Feb. 28, 1928.

HOWARD n. CRWIN, or NnwARmfNEW JiinsnY.`

i i FUEL-CONSUMPTIN "sirsciiiiir- Application led June 10, 1927. Serial No. 197,824.

This invention relates to fuel consumption and has special reference to a system for utilizing liquid fuels.

More particularly the invention relates to such a system provided With means for preventing excess fuel being delivered to the consuming device such as an oil burner, carl bureter oi the like.

@ne important object ef the invention to provide an improved liquid fuel utilizing system wherein excess fuel will be ordinarily returned to the source of supply.

A second important object of the invention is to provide an improved system of this character wherein the fuelregulating device may be attached Without disarranging other parts of the system.

With the above and other objects in view as will be hereinafter apparent, the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawings and specifically claimed.-

In the accompanying drawings `like char-` acters of reference indica-te like partsin the several views, and: y

Figure 1 is a diagrammatic View in elevation of the system applied to a carbureter, or fuel feed float.

Figure 2 is a plan view thereof.

Figure 3 illustrates `a regulating device adapted for use in connection with this system.

Figure 4 is an elevation of such a system as used in a fuel oil burner.

Figure 5 is a plan View of the arrangeinent shown in Figure 4.

In the form of the invention shown in Figure 1 there has been indicated, for convenience in illustrating the system, a vacuum tank 10 and a carbureter 11 ivhichare connected by a fuel supply pipe 12. Branching from the pipe 12 is a branch 13 which is connected tothe inlet of the regulating device 14. This regulating device has an outlet 15 at its bottom which is controlled by a needle valve 16 the opening of which is regulated by a float 17, the regulating device` being preferably that illustrated in my co-pending application for patent on liquid head maintaining device, led August 27, 1925,` Serial Number 52,815. The outlet 15 communicates with a return or by-pass pipe 16 which leads back to the supply 10. In .the form of the invention shown in Figures 4 and 5 the supply takes the form of a pump 17 through which fuel oil is pumped to a burner, not shown. The pump cylinder here shown is connected to they regulating device 14 on its suctionside by the pipe 16 as usual and to this pipe 16 is connected a pipe 16 leading from the supply. The `)ipe 18 connects the outlet of the pump with a fuel feed device of the type commercially known as the Stromberg fuel feed apparatus, this being in turn connected by suitable means, not shown, to the burner. Frein the top of this apparatus 19 the pipe 20 extends to the side inlet of the regulating device 14, this being an overflow pipe so that in case too much oil is supplied to the apparatus 19 it overflows into the regulating device 14, raises the float 17 and thus opens the valve 16 so that the fuel is simply by-passed instead of being drawn from the supply through the pipe 16."

In the operation of the device as shown in Figures 1 and 2 it will be observed that Whenever the fuel is supplied in excess to the carbureter 11 the oat 17 will rise and open the valve 15 so that in place of more fuel running to the carbui'eter it will be by-passed back to the source of supply 10. In like manner in the device shown in Figures 4 and 5 Whenever an excess of fuel is supplied to the device 19 it will overflow into the pipe 20 and thus pass into the regulating device 14, raising the float and allowing such ex* cess to be ley-passed. back to the pipe 17.

There has t ius been provided a simple and efficient device of the kind described and for the purpose specified. V

It is obvious that minor changes may be made in the form and construction of the invention Without departing from the inau teria] spirit thereof. It is not, therefore, desired to confine tie invention to the exact forni herein shown and described, but it is desired to include all such as properly come Within the scope claimed. v

Having thus described the invention, what claimed as new, is:

The combination with a fuel tank and fuel utilizing device, of a pipe connecting the tank and utilizing device and extending horizontally from the utilizing device below the normal fuel level thereof, a liquid level regulating device including a casing positioned in lat-eral spaced relation to the utilizing device and having a horizontal inlet pipe branching from the horizontal portion ofthe 5 rst pipe, the normal liquid level in the regulating device being in the same horizontal plane as the normal level in the utilizing device, a return pipe connecting the bottom of the regulating device with said tank, and

a float controlled valve governing the HOW l0 of liquid from the regulating device through the last mentioned pipe.

In testimony whereof I aHix my signature.

HOWARD R. CORWIN. 

